Roberval balance

名词 n.
中文释义

英文释义

名词 n.
  1. A kind of weighing scale with two identical horizontal beams attached, one directly above the other, to a vertical column.

词形变化

Roberval balances plural Roberval's balance alternative

词源

Presented to the French Academy of Sciences by the French mathematician Gilles Personne de Roberval in 1669.
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